// fade

.slide-leave-active,
.slide-enter-active {
  transition: all .5s ease;
}
// vue2=>vue3 元素初始位置:slide-enter=>slide-enter-from
.slide-enter-from,
.slide-leave-to {
  top: -100%;
  opacity: 0;
}

// scale
.scale-enter-from,
.scale-leave-to {
  transform: scale(0);
}
.scale-leave-from,
.scale-enter-to {
  transform: scale(1);
}
.scale-enter-active,
.scale-leave-active {
  transition: all .5s;
}

// left(right/top)
.left-enter-from,
.left-leave-to {
  transform: translate3d(-100%, 0, 0);
}
.left-leave-from,
.left-enter-to {
  transform: translate3d(0, 0, 0);
}
.left-enter-active,
.left-leave-active {
  transition: all 0.5s;
}